Document And Entity Information (USD $)	6 Months Ended
	Dec. 31, 2011	Feb. 14, 2012	Dec. 31, 2010
Document and Entity Information [Abstract]
Entity Registrant Name	PRECISION OPTICS Corp INC
Document Type	10-Q
Current Fiscal Year End Date	--06-30
Entity Common Stock, Shares Outstanding		1,245,339
Entity Public Float			$ 36,712
Amendment Flag	false
Entity Central Index Key	0000867840
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Smaller Reporting Company
Entity Well-known Seasoned Issuer	No
Document Period End Date	Dec. 31, 2011
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2